ASTM D6416/D6416M-16
Standard Test Method for Two-Dimensional Flexural Properties of Simply Supported Sandwich Composite Plates Subjected to a Distributed Load
- Standard No.
- ASTM D6416/D6416M-16
- Release Date
- 2016
- Published By
- American Society for Testing and Materials (ASTM)
- Status
- Replace By
- ASTM D6416/D6416M-16e1
- Latest
- ASTM D6416/D6416M-16e1
- Scope
5.1 This test method simulates the hydrostatic loading conditions which are often present in actual sandwich structures, such as marine hulls. This test method can be used to compare the two-dimensional flexural stiffness of a sandwich composite made with different combinations of materials or with different fabrication processes. Since it is based on distributed loading rather than concentrated loading, it may also provide more realistic information on the failure mechanisms of sandwich structures loaded in a similar manner. Test data should be useful for design and engineering, material specification, quality assurance, and process development. In addition, data from this test method would be useful in refining predictive mathematical models or computer code for use as structural design tools. Properties that may be obtained from this test method include:
5.1.1 Panel surface deflection at load,
5.1.2 Panel face-sheet strain at load,
5.1.3 Panel bending stiffness,
5.1.4 Panel shear stiffness,
5.1.5 Panel strength, and
5.1.6 Panel failure modes.
1.1 This test method determines the two-dimensional flexural properties of sandwich composite plates subjected to a distributed load. The test fixture uses a relatively large square panel sample which is simply supported all around and has the distributed load provided by a water-filled bladder. This type of loading differs from the procedure of Test Method C393, where concentrated loads induce one-dimensional, simple bending in beam specimens.
1.2 This test method is applicable to composite structures of the sandwich type which involve a relatively thick layer of core material bonded on both faces with an adhesive to thin-face sheets composed of a denser, higher-modulus material, typically, a polymer matrix reinforced with high-modulus fibers.
1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. Within the text the inch-pound units are shown in brackets. The values stated in each system are not exact equivalents; therefore, each system must be used independently of the other. Combining values from the two systems may result in nonconformance with the standard.
1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
ASTM D6416/D6416M-16 Referenced Document
- ASTM C365/C365M Standard Test Method for Flatwise Compressive Properties of Sandwich Cores*， 2022-05-01 Update
- ASTM C393 Standard Test Method for Flexural Properties of Sandwich Constructions
- ASTM D2584 Standard Test Method for Ignition Loss of Cured Reinforced Resins
- ASTM D2734 Standard Test Methods for Void Content of Reinforced Plastics
- ASTM D3171 Standard Test Methods for Constituent Content of Composite Materials
- ASTM D3878 Standard Terminology Composite Materials
- ASTM D792 Standard Test Methods for Density and Specific Gravity (Relative Density) of Plastics by Displacement
- ASTM E1237 Standard Guide for Installing Bonded Resistance Strain Gages
- ASTM E251 Standard Test Methods for Performance Characteristics of Metallic Bonded Resistance Strain Gages
- ASTM E4 Standard Practices for Force Verification of Testing Machines
- ASTM E6 Standard Terminology Relating to Methods of Mechanical Testing
ASTM D6416/D6416M-16 history
- 2016 ASTM D6416/D6416M-16e1 Standard Test Method for Two-Dimensional Flexural Properties of Simply Supported Sandwich Composite Plates Subjected to a Distributed Load
- 2016 ASTM D6416/D6416M-16 Standard Test Method for Two-Dimensional Flexural Properties of Simply Supported Sandwich Composite Plates Subjected to a Distributed Load
- 2001 ASTM D6416/D6416M-01(2012) Standard Test Method for Two-Dimensional Flexural Properties of Simply Supported Sandwich Composite Plates Subjected to a Distributed Load
- 2001 ASTM D6416/D6416M-01(2007) Standard Test Method for Two-Dimensional Flexural Properties of Simply Supported Sandwich Composite Plates Subjected to a Distributed Load
- 2001 ASTM D6416/D6416M-01e1 Standard Test Method for Two-Dimensional Flexural Properties of Simply Supported Sandwich Composite Plates Subjected to a Distributed Load
- 2001 ASTM D6416/D6416M-01 Standard Test Method for Two-Dimensional Flexural Properties of Simply Supported Sandwich Composite Plates Subjected to a Distributed Load
- 2001 ASTM D6416/D6416M-99 Standard Test Method for Two-Dimensional Flexural Properties of Simply Supported Sandwich Composite Plates Subjected to a Distributed Load
